Sametjl slack



BAMEUL SLACK, 0F BISBEE, ARIZONA.

JACK-HAMMER.

Specication of Letters Patent.

Patented Sept. 30, 1919.

v Application led June 23, 1819. Serial No. 305,995.

To all whom t may concern.'

Be it known that I, SAMEDI. SLACK, a citizen of the United States, residing at Bisbee, in the county of Cochise and State of Arizona, have invented certain new and useful Improvements in J ack-Hammers; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

This invention relates to new and useful improvements in slings for hammers, and consists of a simple and elicient device of this nature so arranged that the jack hammer may be supported for convenient use through the medium of a mechanism, which will be hereinafter fully described and specifically defined in the appended claim.

My invention is illustrated in the accompanying drawing which, with the numerals of reference marked thereon, form a part of this application, and in which:

Figure 1 is a perspective view showing the device suspended.

Reference now being had to the details of the drawings by numerals:

1 designates the vertical posts or timbers of a mine and upon the cross pieces 2 secured thereto is supported a shaft upon which a ring 4 is placed. The spring consists of a rod 5 bent to form an eye 6, through which a rope 7 passes and which rope is secured to the ring 4. The rope passes up and through the ring 4 through which it slides freely, and whereby, as the rope is pulled upon, the member 5 may be' raised. Each end of the rod 5 is bent to form eyes 8 and 9 respectively, and 10 is a ring which is fastened in the eye 8 and passes about the jack hammer or drill 11. Two links designated respectively by numerals 12 and 13 have eyes at their upper ends connected to the eyes 9 and their lower ends are provided with eyes 14 which are fastened to the projecting lug 15 upon the jack hammer or drill.

By the means of my improved sling, it will be noted that the jack hammer may be held at different elevations, thereby relieving the operator of the weight of the same, the device being easily and quickly adjusted to any location within the mine.

What I claim to be new is:

A sling for jack hammers comprising a rod with eyes at its ends and an intermediate wire, the latter being adapted to be attached to a supporting cable, a ring secured to the eyes at one end, links having eyes at their opposite ends and which are connected each to an eye at the end ofthe rod opposite that to which the ring is connected.

In testimony whereof I hereunto aiiix my signature.

SAMEUL SLACK.

Copie! o! this patent maybe obtained for ve nent: each, by addressing the "Commissioner o! Patents, Washington, D. 0. 

